Home / 30,798.21-42,498.98-17,372.76

Finding the Fourth Proportional to 30,798.21, 42,498.98 and 17,372.76

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Solution

The fourth proportional to 30,798.21, 42,498.98 and 17,372.76 is: 23,972.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,798.21 : 42,498.98 = 17,372.76 : x
  2. Step 2: Convert to fraction form
    30,798.21/42,498.98 = 17,372.76/x
  3. Step 3: Cross multiply
    30,798.21x = 42,498.98 × 17,372.76
  4. Step 4: Simplify right side
    30,798.21x = 738,324,548.11
  5. Step 5: Solve for x
    x = 738,324,548.11/30,798.21
  6. Step 6: Final answer
    x = 23,972.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.